| Publication |
Sentence |
Publish Date |
Extraction Date |
Species |
| G Bugmann, R S Bap. Modelling relative recency discrimination tasks using a stochastic working memory model. Bio Systems. vol 58. issue 1-3. 2001-03-01. PMID:11164647. |
in this model, successive words seen by subjects leave decaying memory traces in pfc, which subsequently prime the representations in higher sensory areas such as inferior temporal cortex (it) during discrimination judgements. |
2001-03-01 |
2023-08-12 |
human |
| G Bugmann, R S Bap. Modelling relative recency discrimination tasks using a stochastic working memory model. Bio Systems. vol 58. issue 1-3. 2001-03-01. PMID:11164647. |
a good fit to experimental data is obtained with a pfc memory persistence probability with a decay time constant of tau = approximately 30 s. the model allows for a distributed representation in it and pfc, but the best fit suggests a sparse representation. |
2001-03-01 |
2023-08-12 |
human |
| G Bugmann, R S Bap. Modelling relative recency discrimination tasks using a stochastic working memory model. Bio Systems. vol 58. issue 1-3. 2001-03-01. PMID:11164647. |
it is concluded that further data are needed on representations in it and pfc, on the connectivity between these two areas, and on the statistical and dynamic properties of memory neurons in pfc. |
2001-03-01 |
2023-08-12 |
human |
| K Sekiyama, S Miyauchi, T Imaruoka, H Egusa, T Tashir. Body image as a visuomotor transformation device revealed in adaptation to reversed vision. Nature. vol 407. issue 6802. 2000-10-19. PMID:11014192. |
functional magnetic resonance imaging showed brain activity in the left posterior frontal cortex (broca's area) that was unique to the new hand representations of both hands, together with activation in the intraparietal sulcus and prefrontal cortex. |
2000-10-19 |
2023-08-12 |
human |
| G Rainer, E K Mille. Effects of visual experience on the representation of objects in the prefrontal cortex. Neuron. vol 27. issue 1. 2000-08-28. PMID:10939341. |
effects of visual experience on the representation of objects in the prefrontal cortex. |
2000-08-28 |
2023-08-12 |
monkey |
| M D'Esposito, D Ballard, E Zarahn, G K Aguirr. The role of prefrontal cortex in sensory memory and motor preparation: an event-related fMRI study. NeuroImage. vol 11. issue 5 Pt 1. 2000-06-28. PMID:10806027. |
furthermore, no selectivity (in terms of intensity of neural representation on the spatial scale of the voxel size <5 mm(3)) for motor preparation over sensory memory (or vice-versa) was detected within the pfc. |
2000-06-28 |
2023-08-12 |
human |
| J B Rowe, I Toni, O Josephs, R S Frackowiak, R E Passingha. The prefrontal cortex: response selection or maintenance within working memory? Science (New York, N.Y.). vol 288. issue 5471. 2000-06-15. PMID:10834847. |
the results support a role for the dorsal prefrontal cortex in the selection of representations. |
2000-06-15 |
2023-08-12 |
human |
| H D Critchley, R Elliott, C J Mathias, R J Dola. Neural activity relating to generation and representation of galvanic skin conductance responses: a functional magnetic resonance imaging study. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 20. issue 8. 2000-05-15. PMID:10751455. |
the precise functional neuroanatomy underlying generation and representation of scr during motivational behavior is undetermined, although it is impaired by discrete brain lesions to ventromedial prefrontal cortex, anterior cingulate, and parietal lobe. |
2000-05-15 |
2023-08-12 |
Not clear |
| T Iidaka, N Sadato, H Yamada, Y Yonekur. Functional asymmetry of human prefrontal cortex in verbal and non-verbal episodic memory as revealed by fMRI. Brain research. Cognitive brain research. vol 9. issue 1. 2000-04-11. PMID:10666559. |
the evidence, that both encoding and retrieval of words activated the left ventral prefrontal cortex, indicates that this area is involved in active and strategic operation of the mnemonic representation. |
2000-04-11 |
2023-08-12 |
human |
| D Durstewitz, J K Seamans, T J Sejnowsk. Dopamine-mediated stabilization of delay-period activity in a network model of prefrontal cortex. Journal of neurophysiology. vol 83. issue 3. 2000-04-11. PMID:10712493. |
recently we proposed that dopamine might stabilize active neural representations in pfc circuits during tasks involving working memory and render them robust against interfering stimuli and noise. |
2000-04-11 |
2023-08-12 |
Not clear |
| D Durstewitz, J K Seamans, T J Sejnowsk. Dopamine-mediated stabilization of delay-period activity in a network model of prefrontal cortex. Journal of neurophysiology. vol 83. issue 3. 2000-04-11. PMID:10712493. |
to further test this idea and to examine the dopamine-modulated ionic currents that could give rise to increased stability of neural representations, we developed a network model of the pfc consisting of multicompartment neurons equipped with hodgkin-huxley-like channel kinetics that could reproduce in vitro whole cell and in vivo recordings from pfc neurons. |
2000-04-11 |
2023-08-12 |
Not clear |
| D Durstewitz, J K Seamans, T J Sejnowsk. Dopamine-mediated stabilization of delay-period activity in a network model of prefrontal cortex. Journal of neurophysiology. vol 83. issue 3. 2000-04-11. PMID:10712493. |
in conclusion, the dopamine-induced changes in the biophysical properties of intrinsic ionic and synaptic conductances conjointly acted to highly increase stability of activated representations in pfc networks and at the same time retain control over network behavior and thus preserve its ability to adequately respond to task-related stimuli. |
2000-04-11 |
2023-08-12 |
Not clear |
| V Prabhakaran, K Narayanan, Z Zhao, J D Gabriel. Integration of diverse information in working memory within the frontal lobe. Nature neuroscience. vol 3. issue 1. 2000-01-24. PMID:10607400. |
for equal amounts of verbal and spatial information, activation of prefrontal cortex was greater for maintaining integrated rather than unintegrated representations. |
2000-01-24 |
2023-08-12 |
human |
| B Rypma, M D'Esposit. The roles of prefrontal brain regions in components of working memory: effects of memory load and individual differences. Proceedings of the National Academy of Sciences of the United States of America. vol 96. issue 11. 1999-06-24. PMID:10339627. |
it was observed that dorsal pfc plays a differentially greater role in information retrieval for slower subjects, possibly because of inefficient retrieval processes or a reduced quality of mnemonic representations. |
1999-06-24 |
2023-08-12 |
human |
| J A Mangels, R B Ivry, N Shimiz. Dissociable contributions of the prefrontal and neocerebellar cortex to time perception. Brain research. Cognitive brain research. vol 7. issue 1. 1999-05-21. PMID:9714713. |
these findings support the hypothesis that neocerebellar regions subserve a central timing mechanism, whereas the prefrontal cortex subserves supportive functions associated with the acquisition, maintenance, monitoring and organization of temporal representations in working memory. |
1999-05-21 |
2023-08-12 |
Not clear |
| D Durstewitz, M Kelc, O Güntürkü. A neurocomputational theory of the dopaminergic modulation of working memory functions. The Journal of neuroscience : the official journal of the Society for Neuroscience. vol 19. issue 7. 1999-04-13. PMID:10087092. |
here, the hypothesis is put forward that the functional role of dopamine in working memory processing is to stabilize active neural representations in the pfc network and thereby to protect goal-related delay-activity against interfering stimuli. |
1999-04-13 |
2023-08-12 |
Not clear |
| S M Courtney, L Petit, J V Haxby, L G Ungerleide. The role of prefrontal cortex in working memory: examining the contents of consciousness. Philosophical transactions of the Royal Society of London. Series B, Biological sciences. vol 353. issue 1377. 1999-01-19. PMID:9854254. |
first, we present evidence from brain-imaging studies that prefrontal cortex shows sustained activity during the delay period of visual working memory tasks, indicating that this cortex maintains on-line representations of stimuli after they are removed from view. |
1999-01-19 |
2023-08-12 |
Not clear |
| S M Courtney, L Petit, J V Haxby, L G Ungerleide. The role of prefrontal cortex in working memory: examining the contents of consciousness. Philosophical transactions of the Royal Society of London. Series B, Biological sciences. vol 353. issue 1377. 1999-01-19. PMID:9854254. |
we also propose that a second dimension for domain specificity within prefrontal cortex might exist for object working memory on the basis of the type of representation, with analytic representations maintained preferentially in the left hemisphere and image-based representations maintained preferentially in the right hemisphere. |
1999-01-19 |
2023-08-12 |
Not clear |
| G Rainer, W F Asaad, E K Mille. Selective representation of relevant information by neurons in the primate prefrontal cortex. Nature. vol 393. issue 6685. 1998-07-02. PMID:9634233. |
selective representation of relevant information by neurons in the primate prefrontal cortex. |
1998-07-02 |
2023-08-12 |
monkey |
| R J Dolan, P Fletcher, J Morris, N Kapur, J F Deakin, C D Frit. Neural activation during covert processing of positive emotional facial expressions. NeuroImage. vol 4. issue 3 Pt 1. 1997-12-02. PMID:9345509. |
the representation of emotional faces over a delay period, compared to either the nonemotional or the fixation condition, was associated with significant activation in the left ventral prefrontal cortex, the left anterior cingulate cortex, and the right fusiform gyrus. |
1997-12-02 |
2023-08-12 |
human |